LAYOUT FINDER AH
It seems that the general trend with fixed single beds is to sling the van’s washroom right at the back behind them. But there are still a couple of models out there with fixed single beds where the washroom remains central.
The advantage of this set-up is that the washroom acts as a kind of partition, sealing you off from the hubbub that might be going on elsewhere .... in the caravan. It also allows easy washroom access for all participants overnight.
Pros
Bedroom is shut off from the rest of the caravan, so ideal for seasonal touring
Cons
The centre of the caravan can feel dark and cramped